RM36D0EC _59 Vehicle Exterior _083108 SLIDING ROOF / CONVERTIBLE _0402649 PANORAMIC MOON ROOF SYSTEM(for Gasoline Model) C

SLIDING ROOF / CONVERTIBLE  PANORAMIC MOON ROOF SYSTEM(for Gasoline Model)  B2346  Lost Communication with Front Shade Module  


DESCRIPTION

This DTC is stored when LIN communication between the sliding roof ECU (sliding roof drive gear assembly [sliding roof]) and roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]) stops for 10 seconds or more.

DTC No. Detection Item DTC Detection Condition Trouble Area
B2346 Lost Communication with Front Shade Module No communication between the sliding roof ECU (sliding roof drive gear assembly [sliding roof]) and roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]) for 10 seconds or more.
·

Sliding roof ECU (sliding roof drive gear assembly [sliding roof])

·

Roof sunshade ECU (sliding roof drive gear assembly [roof sunshade])

·

Harness or connector



WIRING DIAGRAM

B538115E03
1.115,0.74 1.917,0.979 0.802,0.24 10 false from Battery 2.563,0.958 3.156,1.177 0.594,0.219 10 false S/ROOF 4.219,0.646 4.531,0.844 0.313,0.198 10 false +B 4.01,0.646 4.167,0.844 0.156,0.198 10 false 1 4.25,1.906 4.865,2.104 0.615,0.198 10 false LLIN 4.01,1.896 4.167,2.094 0.156,0.198 10 false 3 2.667,1.906 3.167,2.208 0.5,0.302 10 false MPX2 3.188,1.896 3.344,2.094 0.156,0.198 10 false 3 0.563,2.865 1.01,3.344 0.448,0.479 10 false Sliding Motor 1.854,2.625 2.313,2.823 0.458,0.198 10 false ECU 1.344,3.771 2.49,4.042 1.146,0.271 10 false Sliding Roof ECU 0.698,4.302 1.01,4.5 0.313,0.198 10 false P4 0.677,4.479 2.771,4.885 2.094,0.406 10 false Sliding Roof Drive Gear Assembly (Sliding Roof) 4.323,2.938 4.479,3.135 0.156,0.198 10 false A 4.313,3.104 5.604,3.302 1.292,0.198 10 false Roof Sunshade ECU 4.208,3.677 6.292,4.083 2.083,0.406 10 false Sliding Roof Drive Gear Assembly (Roof Sunshade) 5.646,2.313 5.802,2.51 0.156,0.198 10 false E 5.896,2.313 6.052,2.51 0.156,0.198 10 false 2 0.521,5.406 2.125,5.667 1.604,0.26 10 false : LIN Communication Line 4.979,1.458 5.438,1.656 0.458,0.198 10 false ECU

CAUTION / NOTICE / HINT

NOTICE:
·

Inspect the fuse for circuits related to this system before performing the following inspection procedure.

·

When the sliding roof ECU (sliding roof drive gear assembly [sliding roof]) is removed and reinstalled or replaced, the sliding roof ECU (sliding roof drive gear assembly [sliding roof]) must be initialized.

Click hereVehicle Exterior>SLIDING ROOF / CONVERTIBLE>PANORAMIC MOON ROOF SYSTEM (for Gasoline Model)>INITIALIZATION

·

When the roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]) is removed and reinstalled or replaced, the roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]) must be initialized.

Click hereVehicle Exterior>SLIDING ROOF / CONVERTIBLE>PANORAMIC MOON ROOF SYSTEM (for Gasoline Model)>INITIALIZATION



PROCEDURE

1.CHECK FOR DTC
a.

Clear the DTCs.

Click hereVehicle Exterior>SLIDING ROOF / CONVERTIBLE>PANORAMIC MOON ROOF SYSTEM (for Gasoline Model)>DTC CHECK / CLEAR

Body Electrical > Sliding Roof > Clear DTCs
50002 147

b.

Check for DTCs.

Click hereVehicle Exterior>SLIDING ROOF / CONVERTIBLE>PANORAMIC MOON ROOF SYSTEM (for Gasoline Model)>DTC CHECK / CLEAR

Body Electrical > Sliding Roof > Trouble Codes
50001 147
OK:

DTC B2346 is not output.



Result:
Proceed to
OK
NG



OK

2.CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU [SLIDING ROOF DRIVE GEAR ASSEMBLY (SLIDING ROOF)] - ROOF SUNSHADE ECU [SLIDING ROOF DRIVE GEAR ASSEMBLY (ROOF SUNSHADE)])

NG

USE SIMULATION METHOD TO CHECK

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING


2.CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU [SLIDING ROOF DRIVE GEAR ASSEMBLY (SLIDING ROOF)] - ROOF SUNSHADE ECU [SLIDING ROOF DRIVE GEAR ASSEMBLY (ROOF SUNSHADE)])
a.

Disconnect the P4 sliding roof ECU (sliding roof drive gear assembly [sliding roof]) connector.


b.

Disconnect the A roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]) connector.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
P4-3 (MPX2) - A-3 (LLIN) Always Below 1 Ω
P4-3 (MPX2) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

3.CHECK HARNESS AND CONNECTOR (ROOF SUNSHADE ECU [SLIDING ROOF DRIVE GEAR ASSEMBLY (ROOF SUNSHADE)] - BATTERY AND BODY GROUND)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.CHECK HARNESS AND CONNECTOR (ROOF SUNSHADE ECU [SLIDING ROOF DRIVE GEAR ASSEMBLY (ROOF SUNSHADE)] - BATTERY AND BODY GROUND)
a.
B425565C50
1.5,0.167 1.917,0.417 0.417,0.25 2.552,0.854 2.333,0.854 2.333,0.854 1.958,1.094 true 1.479,1.104 1.125,0.875 1.125,0.875 0.917,0.875 true 1.667,0.208 1.979,0.406 0.313,0.198 10 false A 0.667,0.781 0.99,1.021 0.323,0.24 10 false +B 0.146,0.104 0.531,0.427 0.385,0.323 10 false *a 2.656,0.76 2.979,1 0.323,0.24 10 false E
*a Front view of wire harness connector
(to Roof Sunshade ECU [Sliding Roof Drive Gear Assembly (Roof Sunshade)])


Disconnect the roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]) connector.


b.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
A-2 (E) - Body ground Always Below 1 Ω



c.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:
Tester Connection Condition Specified Condition
A-1 (+B) - Body ground Always 11 to 14 V



Result:
Proceed to
OK
NG



OK

4.CHECK ROOF SUNSHADE ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY [ROOF SUNSHADE])

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.CHECK ROOF SUNSHADE ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY [ROOF SUNSHADE])
a.

Temporarily replace the roof sunshade ECU (sliding roof drive gear assembly [roof sunshade]) with a new or normally functioning one.

Click hereVehicle Exterior>SLIDING ROOF / CONVERTIBLE>SLIDING ROOF HOUSING (for Panoramic Moon Roof)>DISASSEMBLY


Result:
Proceed to
NEXT



NEXT

5.CHECK FOR DTC
5.CHECK FOR DTC
a.

Clear the DTCs.

Click hereVehicle Exterior>SLIDING ROOF / CONVERTIBLE>PANORAMIC MOON ROOF SYSTEM (for Gasoline Model)>DTC CHECK / CLEAR

Body Electrical > Sliding Roof > Clear DTCs
50002 147

b.

Check for DTCs.

Click hereVehicle Exterior>SLIDING ROOF / CONVERTIBLE>PANORAMIC MOON ROOF SYSTEM (for Gasoline Model)>DTC CHECK / CLEAR

Body Electrical > Sliding Roof > Trouble Codes
50001 147
OK:

DTC B2346 is not output.



Result:
Proceed to
OK
NG



OK

END (ROOF SUNSHADE ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY [ROOF SUNSHADE]) IS DEFECTIVE)

NG

REPLACE SLIDING ROOF ECU [SLIDING ROOF DRIVE GEAR ASSEMBLY (SLIDING ROOF)]

Click hereVehicle Exterior>SLIDING ROOF / CONVERTIBLE>SLIDING ROOF HOUSING (for Panoramic Moon Roof)>DISASSEMBLY